HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Kansai Intl

$373+ Cheap flights from Ontario (ONT) to Kansai Intl (KIX)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/29. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — KIX
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Ontario to Kansai Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Ontario to Kansai Intl

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Kansai Intl (KIX). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 11, 2025.

Round-trip from

$639
(SmartFares)

One-way from

$373
(Alaska Airlines)

Popular in

June

Cheapest in

August

Average price

$1,075
From Ontario to Osaka Kansai Intl
Search Deals
One-way flight from Ontario to Osaka Kansai Intl
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($204 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($37 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Find flight deals from Ontario to Kansai Intl

Cheapest flights from Ontario to Kansai Intl
Explore the most affordable flight options available from Ontario to Kansai Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Alaska Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/87:36 amONT - KIX
1 stop18h 09mAlaska Airlines
Tue 12/168:45 pmKIX - ONT
1 stop17h 25mAlaska Airlines
Deal found 9/9$705
This United Airlines deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/76:00 amONT - KIX
1 stop17h 40mUnited Airlines
Tue 12/166:35 pmKIX - ONT
1 stop16h 02mUnited Airlines
Deal found 9/8$710
This United Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/86:00 amONT - KIX
1 stop17h 40mUnited Airlines
Tue 12/168:20 amKIX - ONT
2 stops20h 57mUnited Airlines
Deal found 9/9$713
This Hawaiian Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1510:09 amONT - KIX
1 stop16h 36mHawaiian Airlines
Tue 9/238:45 pmKIX - ONT
1 stop16h 25mHawaiian Airlines
Deal found 9/9$721
This lol.travel deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/151:42 pmONT - KIX
1 stop33h 08mUnited Airlines
Tue 9/304:50 pmKIX - ONT
1 stop22h 02mUnited Airlines
Deal found 9/11$742
This Alaska Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1510:09 amONT - KIX
1 stop16h 36mAlaska Airlines
Tue 9/238:45 pmKIX - ONT
1 stop16h 25mAlaska Airlines
Deal found 9/11$746
This American Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/156:10 amONT - KIX
2 stops20h 35mAmerican Airlines
Tue 9/235:55 pmKIX - ONT
2 stops20h 38mAmerican Airlines
Deal found 9/11$751
This United Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/106:00 amONT - KIX
1 stop17h 40mUnited Airlines
Wed 11/198:20 amKIX - ONT
2 stops21h 17mUnited Airlines
Deal found 9/9$760
This Korean Air deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/76:40 amONT - KIX
2 stops21h 05mKorean Air
Mon 12/156:10 pmKIX - ONT
2 stops45h 37mKorean Air
Deal found 9/9$766
This United Airlines deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/76:00 amONT - KIX
2 stops20h 25mUnited Airlines
Sun 12/148:20 amKIX - ONT
2 stops20h 58mUnited Airlines
Deal found 9/8$769

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Kansai Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 11, 2025.
Use the filters below to find and compare flights from Ontario to Osaka Kansai Intl Airport that are best for you.

Fly from

Ontario

Fly to

Kansai Intl

Route

Depart

Return

Price

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

Mon 12/8

7:36 am-6:45 pm

1 stop18h 09m

Osaka Kansai Intl

Tue 12/16

8:45 pm-9:10 pm

1 stop17h 25m

$705

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

Sun 12/7

6:00 am-4:40 pm

1 stop17h 40m

Osaka Kansai Intl

Tue 12/16

6:35 pm-5:37 pm

1 stop16h 02m

$710

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

Wed 12/10

6:00 am-4:40 pm

1 stop17h 40m

Osaka Kansai Intl

Thu 12/18

6:35 pm-10:41 pm

1 stop21h 06m

$710

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

Mon 9/15

10:09 am-6:45 pm

1 stop16h 36m

Osaka Kansai Intl

Tue 9/23

8:45 pm-9:10 pm

1 stop16h 25m

$721

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

Mon 12/8

6:00 am-4:40 pm

1 stop17h 40m

Osaka Kansai Intl

Mon 12/15

6:35 pm-10:49 pm

1 stop21h 14m

$760

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

Sun 12/7

6:40 am-10:45 am

2 stops35h 05m

Osaka Kansai Intl

Tue 12/16

11:55 am-10:47 pm

2 stops27h 52m

$766

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

Mon 11/10

5:05 am-4:40 pm

2 stops42h 35m

Osaka Kansai Intl

Wed 11/19

8:20 am-12:37 pm

2 stops21h 17m

$779

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

Thu 11/27

1:40 pm-4:40 pm

1 stop34h 00m

Osaka Kansai Intl

Fri 12/12

6:35 pm-10:49 pm

1 stop21h 14m

$783

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

Mon 9/29

10:09 am-6:45 pm

1 stop16h 36m

$373

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

Sun 9/28

10:09 am-6:45 pm

1 stop16h 36m

$373

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 19 results
1
2

Best time to book a flight from Ontario to Kansai Intl

Have a flexible travel schedule? Discover the best time to fly to Kansai Intl from Ontario with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Ontario to Osaka Kansai Intl Airport

What is the cheapest month to book a flight from Ontario to Osaka Kansai Intl Airport?

Currently, February is the cheapest month in which you can book a flight from Ontario to Osaka Kansai Intl Airport (average of $866). Flying from Ontario to Osaka Kansai Intl Airport in June is currently the most expensive (average of $1,310). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ONT to KIX?

Find hourly flight availability from Ontario to Kansai Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 6% on flights from Ontario to Osaka Kansai Intl Airport by exploring options for tickets in the morning.

Reviews of airlines servicing Kansai Intl

Get insights into the airlines that provide service to Kansai Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Kansai Intl. Reviews last updated September 11, 2025.
Read reviews from past customers who have flown China Airlines and United Airlines from Ontario to Osaka Kansai Intl Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
China Airlines
8.3
Very good
767 reviews

Boarding

8.3

Overall

8.3

Entertainment

8.0

Food

7.8

Crew

8.5

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

SFO - TPE

Bad News - The flight was delayed and it was due to ground crew issues but the staff were moving things along. The seat size was cramp and i am a lean person. The attendant kept asking me in Chinese when i already stated i don’t speak the language. The food was bad. The taste, aroma, consistent of mush. Even a cafeteria lady can cook better food. Kudos - the pilot made up for lost time to the best of his ability. He made sure that the flight was smooth even though there was occasional turbulence. The landing was great.
China Airlines
8.3
Very good
767 reviews
China Airlines
8.3
Very good
767 reviews

Boarding

8.3

Overall

8.3

Entertainment

8.0

Food

7.8

Crew

8.5

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

SFO - TPE

Bad News - The flight was delayed and it was due to ground crew issues but the staff were moving things along. The seat size was cramp and i am a lean person. The attendant kept asking me in Chinese when i already stated i don’t speak the language. The food was bad. The taste, aroma, consistent of mush. Even a cafeteria lady can cook better food. Kudos - the pilot made up for lost time to the best of his ability. He made sure that the flight was smooth even though there was occasional turbulence. The landing was great.
United Airlines
7.4
Good
8,937 reviews
China Airlines
8.3
Very good
767 reviews

Boarding

8.3

Overall

8.3

Entertainment

8.0

Food

7.8

Crew

8.5

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

SFO - TPE

Bad News - The flight was delayed and it was due to ground crew issues but the staff were moving things along. The seat size was cramp and i am a lean person. The attendant kept asking me in Chinese when i already stated i don’t speak the language. The food was bad. The taste, aroma, consistent of mush. Even a cafeteria lady can cook better food. Kudos - the pilot made up for lost time to the best of his ability. He made sure that the flight was smooth even though there was occasional turbulence. The landing was great.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Kansai Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Ontario to Osaka Kansai Intl?

    Ontario (ONT), located 3.1 mi from the city center, is the airport you fly out of when you book flights from Ontario to Osaka Kansai Intl. 2 airlines have flights from Ontario to Osaka Kansai Intl on a regular basis. Booking flights from Ontario to Osaka Kansai Intl should not be difficult; the airport handles an average of 0 outbound flights to Osaka Kansai Intl per day.

  • How long is the flight from Ontario to Osaka Kansai Intl Airport?

    For as low as $710, Alaska Airlines can have you in Osaka Kansai Intl Airport from Ontario in 17h 40m. The distance between Ontario and Osaka Kansai Intl Airport is about 5759 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Ontario to Osaka Kansai Intl Airport round-trip?

    United Airlines, at $826, was found to be the cheapest airline from Ontario to Osaka Kansai Intl Airport. An alternate airline flying to your destination would be China Airlines. These flights start at 30% lower than the current average price 3 months from now.

  • Can I find deals for flights from Ontario to Kansai Intl that include hotel bookings?

    Yes. In addition to deals on Ontario to Kansai Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Kansai Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Kansai Intl.

  • Can I find deals for business class flights from Ontario to Kansai Intl?

    Yes. Cheapflights offers flight deals from Ontario to Kansai Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Ontario to Osaka Kansai Intl Airport?

    Currently, February is the cheapest month in which you can book a flight from Ontario to Osaka Kansai Intl Airport (average of $866). Flying from Ontario to Osaka Kansai Intl Airport in June is currently the most expensive (average of $1,310). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Osaka Kansai Intl Airport?

Book flights to Osaka Kansai Intl Airport if you plan to visit one of these locations
Izumisano
Nara
Nishinomiya
Himeji

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ontario to Kansai Intl

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Kansai Intl flights
San Francisco to Kansai Intl flights
Los Angeles to Itami flights
Los Angeles to Kobe flights
San Francisco to Itami flights
San Francisco to Kobe flights
Santa Ana to Kansai Intl flights
San Jose to Kansai Intl flights
Oakland to Kansai Intl flights
San Diego to Itami flights
San Jose to Itami flights
San Diego to Kansai Intl flights
San Diego to Kobe flights
Santa Rosa to Kansai Intl flights
Long Beach to Kansai Intl flights
Oakland to Itami flights
Las Vegas to Kansai Intl flights
San Jose to Kobe flights
Oakland to Kobe flights
Las Vegas to Itami flights
Las Vegas to Kobe flights
Sacramento to Kansai Intl flights
Sacramento to Itami flights
Sacramento to Kobe flights
Monterey to Kansai Intl flights
Fresno to Kansai Intl flights
Reno to Itami flights
Reno to Kansai Intl flights

Top 2 airlines flying from Ontario to Kansai Intl

Discover the top 2 airlines that operate flights from Ontario to Kansai Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$826Average$1,087FlexibilityNo cancel feeOn-time69%
China AirlinesCheapest$1,032Average$1,141FlexibilityNo cancel feeOn-time70%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.